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Animal Science II

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Animal Science II Biotechnology in ... The altering of the genetic makeup of plants and animals Improving Animal Health Improved Diagnostic testing Monoclonal ... – PowerPoint PPT presentation

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Title: Animal Science II


1
Animal Science II
  • Biotechnology in Animal Science

2
Objective
  • Describe the use of biotechnology to improve
    animal health, productivity and reproduction

3
What is Biotechnology?
  • The altering of the genetic makeup of plants and
    animals

4
Improving Animal Health
  • Improved Diagnostic testing
  • Monoclonal antibodies
  • Pregnancy testing
  • Brucellosis
  • Treatment for disease
  • Caused by viruses and bacteria
  • Genetically engineered vaccines
  • Not live disease causing agents

5
Improving Productivity
  • Transgenic
  • Animals that have been genetically engineered
  • DNA has been shared between organisms
  • Gene transfer
  • Can be used to produce medicines for humans

6
Improving Productivity
  • Somatotrophins
  • Hormones produced by the pituitary gland
  • Circulates in the blood
  • Directs growth and fat deposits
  • Regulates milk production in females

7
Somatotrophins
  • Examples
  • bST
  • Bovine somatotrophin
  • Increases weight
  • Leaner meat

8
Somatotrophins
  • pST
  • Porcine somatotrophin
  • Increases feed efficiency
  • Reduces fat

9
Improving Reproduction
  • Embryo Transfer
  • Performing a superovulation of a female
  • Fertilizing the eggs
  • Removing the fertilized embryos
  • Placing live embryos in other animals (of the
    same species)

10
Improving Reproduction
  • Cloning
  • Makes animals have identical genetics
  • Embryo splitting
  • Nuclear transfer
  • Most rapidly increases uniformity in a particular
    species of animal

11
Assignment
  • Complete the questions on page 209 in the Modern
    Livestock and Poultry Production textbook after
    reading the chapter on Biotechnology in
    Livestock Production
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